Rhythm drum

The exhibit features interesting mechanical and electrical interactions, allowing visitors to understand the relevant scientific knowledge of human conductivity through practical operations.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

The human body contains a large amount of blood, lymphatic fluid, and cerebrospinal fluid, which are mainly composed of water and dissolve various electrolytes such as calcium, sodium, potassium, and other trace elements. These trace elements often exist in the form of charged ions in body fluids and undergo directional movement to form an electric current, thus giving the human body conductivity and making it easy to experience electric shock.